WO2021026743A1 - Display apparatus and terminal - Google Patents

Display apparatus and terminal Download PDF

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Publication number
WO2021026743A1
WO2021026743A1 PCT/CN2019/100274 CN2019100274W WO2021026743A1 WO 2021026743 A1 WO2021026743 A1 WO 2021026743A1 CN 2019100274 W CN2019100274 W CN 2019100274W WO 2021026743 A1 WO2021026743 A1 WO 2021026743A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
flexible circuit
display device
display panel
controller
Prior art date
Application number
PCT/CN2019/100274
Other languages
French (fr)
Chinese (zh)
Inventor
牛文骁
刘练彬
陆旭
梁恒镇
龚庆
李凡
文慧
徐文
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP19933244.6A priority Critical patent/EP4016258A4/en
Priority to US16/959,018 priority patent/US11662853B2/en
Priority to PCT/CN2019/100274 priority patent/WO2021026743A1/en
Priority to CN201980001322.9A priority patent/CN112654953B/en
Publication of WO2021026743A1 publication Critical patent/WO2021026743A1/en
Priority to US18/301,611 priority patent/US20230251736A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/841—Self-supporting sealing arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • This application relates to the field of display technology, and in particular to a display device and a terminal.
  • the current display device may have a pressure sensing function to detect the pressure operation performed by the user on the display panel of the display device.
  • the pressure detection operation is implemented by a pressure sensor (English: force sensor) in the display device.
  • the pressure-sensitive sensor includes a carrier substrate, a flexible printed circuit (English: Flexible Printed Circuit, FPC for short), a pressure-sensitive structure and other structures stacked from bottom to top, and the pressure-sensitive sensor is arranged on the display device. Between the display panel and the frame of the display device, the pressure value is sensed by the change of the gap between the pressure sensing structure of the pressure sensor and the frame.
  • FPC Flexible Printed Circuit
  • the embodiments of the present application provide a display device and a terminal.
  • the technical solution is as follows:
  • a display device which includes a controller, a frame, a display panel, a flexible circuit board, and a pressure sensing structure;
  • the flexible circuit board is located on the back of the display panel and is electrically connected to the display panel, the controller is electrically connected to the flexible circuit board, and the back of the display panel is the light-emitting surface of the display panel The opposite side
  • the pressure sensing structure is located on the flexible circuit board, the pressure sensing structure is electrically connected to the controller through the flexible circuit board, and the frame is located on a side of the flexible circuit board away from the display panel , There is a designated distance between the frame and the pressure sensing structure.
  • the pressure sensing structure is located on a side of the flexible circuit board close to the frame.
  • the display device further includes a display controller, and the flexible circuit board is electrically connected to the display controller.
  • the display panel further includes a touch layer
  • the display device includes a touch controller
  • the touch controller is electrically connected to the flexible circuit board
  • the touch controller is electrically connected to the flexible circuit board through the flexible circuit board.
  • the control layer is electrically connected.
  • the display panel further includes a touch layer, and the controller is a touch controller,
  • the display device further includes a display controller, and the flexible circuit board is electrically connected to the display controller,
  • the touch controller is located on the flexible circuit board and is electrically connected to the touch layer through the flexible circuit board, and the pressure sensing structure is electrically connected to the touch controller through the flexible circuit board.
  • the pressure sensing structure includes at least one sensing substructure.
  • the at least one sensing substructure includes at least two sensing substructures, and orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on the back of the display panel.
  • the pressure sensing structure is welded to the flexible circuit board.
  • the pressure sensing structure is bonded to the flexible circuit board.
  • the pressure sensing structure is bonded to the flexible circuit board through a grid-shaped double-sided tape.
  • the flexible circuit board has a binding area
  • the flexible circuit board is electrically connected to the display panel through the binding area
  • the pressure sensing structure is located at a target position on the flexible circuit board, The target position is located on a side of the flexible circuit board far from the side where the binding area is located;
  • the pressure sensing structure includes at least one sensing substructure, and the at least one sensing substructure is arranged in a direction away from the binding area.
  • the display panel is an organic light emitting diode display panel, and a buffer layer is provided between the organic light emitting diode display panel and the pressure sensing structure;
  • the display device further includes a polarizer, a cover plate, and a touch sensor;
  • the touch sensor is located on a side of the display panel away from the frame;
  • the polarizer is located on a side of the touch sensor away from the frame;
  • the cover plate is located on the side of the polarizer away from the frame.
  • the display panel is a liquid crystal display panel, and a backlight module is provided between the liquid crystal display panel and the pressure sensing structure;
  • the display device further includes a polarizer, a cover plate, and a touch sensor;
  • the touch sensor is located on a side of the display panel away from the frame;
  • the polarizer is located on a side of the touch sensor away from the frame;
  • the cover plate is located on the side of the polarizer away from the frame.
  • the display device further includes a display controller, and the pressure sensing structure is located on a side of the flexible circuit board close to the frame;
  • the flexible circuit board is electrically connected to the display controller
  • the display panel further includes a touch layer, the controller is a touch controller, the touch controller is located on the flexible circuit board, and is electrically connected to the touch layer through the flexible circuit board, The pressure sensing structure is electrically connected to the touch controller through the flexible circuit board;
  • the pressure sensing structure includes at least two sensing substructures, and orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on the back of the display panel.
  • a terminal in a second aspect, includes the display device of any one of the first aspects.
  • the flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need to separately provide a carrier substrate and a flexible circuit board for the pressure-sensitive structure ,
  • the structure of the display device is simplified, and the manufacturing cost of the display device with pressure sensing function is reduced to a certain extent.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the pressure sensing structure and the frame body in the state where the finger does not apply pressure to the display panel according to the pressure sensing structure provided by the embodiment of the present application;
  • FIG. 3 is a schematic diagram of the pressure sensing structure and the frame body in the state where the pressure is applied to the display panel by the finger according to the pressure sensing structure provided by the embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of another display device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another display device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another display device provided by an embodiment of the present application.
  • FIG. 7 is a top view of the structure of a main flexible circuit board provided by an embodiment of the present application.
  • FIG. 8 shows a schematic structural diagram of another display device provided by an embodiment of the present application.
  • FIG. 9 shows a schematic structural diagram of another display device provided by an embodiment of the present application.
  • the terminal With the development of science and technology, more and more functions can be realized by the terminal.
  • One of the commonly used functions is the pressure sensing function.
  • the pressure sensing function integrated in the display module of the mobile terminal can be used to implement functions such as under-screen fingerprints, under-screen cameras, and under-screen pressure sensing.
  • the under-screen fingerprint is an emerging function, which is increasingly used in the display industry. If the under-screen fingerprint is used in conjunction with the under-screen pressure sensor, the user experience can be better improved.
  • the under-screen pressure sensing is realized by a pressure sensor (English: force sensor), which can be a capacitive sensor or a resistive sensor.
  • a pressure sensor English: force sensor
  • the embodiment of the present application takes a capacitive sensor as an example for description.
  • the capacitive sensor can realize the under-screen pressure sensing function by attaching a pressure sensing sensor on the entire surface to the back of the display panel.
  • the pressure-sensitive sensor needs to be manufactured first and then attached to the back of the display panel.
  • the finished pressure-sensitive sensor includes a laminated carrier substrate, a flexible circuit board, and a pressure-sensitive structure.
  • the flexible circuit board of the pressure sensor is electrically connected to the inherent flexible circuit board in the display device through the external lead.
  • Such an arrangement not only causes the manufacturing process and structure of the pressure sensor to be more complicated, and the manufacturing cost is higher.
  • the lead wire is usually fragile and easy to break, the stability of the pressure sensor sensor is poor.
  • the manufacturing process and structure of the display device with the pressure sensor are also relatively complicated, the manufacturing cost is relatively high, and the stability is poor.
  • this solution will also lead to an increase in the thickness of the display device.
  • the embodiment of the present application provides a display device, which can solve technical problems existing in related technologies.
  • the display device 10 includes a controller 101, a frame body 102, a display panel 103, a flexible circuit board 104 and a pressure sensing structure 105.
  • the flexible circuit board 104 is located on the back of the display panel 103 and is electrically connected to the display panel 103.
  • the back of the display panel 103 is the side opposite to the light-emitting surface of the display panel 103.
  • the pressure sensing structure 105 is located on the flexible circuit board 104.
  • the pressure sensing structure 105 is electrically connected to the controller 101 through the flexible circuit board 104.
  • the frame 102 is located on the side of the flexible circuit board 104 away from the display panel 103. The frame 102 and the pressure sensing structure There is a specified distance between 105.
  • the display device senses the capacitance change through the change of the distance between the frame body 102 and the pressure sensing structure 105, thereby realizing the pressure sensing function.
  • the specified distance refers to the maximum distance at which capacitance changes can be sensed. If the distance between the frame 102 and the pressure-sensitive structure 105 exceeds the maximum distance, even if the distance between the frame 102 and the pressure-sensitive structure 105 changes by pressing, it is difficult to sense the capacitance through the change in the distance. In this way, the pressure sensing function cannot be realized.
  • the frame 102 is a frame structure for carrying the display panel 103, for example, the frame 102 is a middle frame.
  • the pressure sensing structure is connected to the controller through a flexible circuit board, and the flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need to separately
  • the pressure sensing structure is provided with a supporting substrate, a flexible circuit board and other structures, which simplifies the structure of the display device and reduces the manufacturing cost of the display device with pressure sensing function to a certain extent.
  • the display device compared with the related art that requires a full-surface pressure sensor to be pasted on the back of the display panel, since there is no need to paste a full-surface pressure sensor on the back of the display panel in the embodiment of the present application, there is no need to add
  • the thickness of the laminated layer in the display device helps to realize the lightness and thinness of the display device; since the pressure sensing structure in the embodiment of the present application is located on the flexible circuit board, there is no need to use the lead to hang the flexible circuit board of the pressure sensing sensor on the display
  • the inherent flexible circuit board of the device therefore, compared with the related art, the display device provided by the embodiment of the present application increases the reliability and stability of the pressure sensing function.
  • FIG. 2 and 3 show the working principle of the pressure sensing structure in the embodiment of the present application.
  • the pressure sensing structure in the display device described in the embodiment of the present application is based on the working principle of a capacitive sensor.
  • FIG. 2 shows a schematic diagram of the pressure sensing structure 105 and the frame body 102 when the finger does not apply pressure to the display panel (not shown in FIG. 2).
  • FIG. 3 shows a schematic diagram of the pressure sensing structure 105 and the frame body 102 in a state where a finger applies pressure to the display panel (not shown in FIG. 3).
  • the pressure-sensitive structure 105 and the frame The shortest distance between the bodies 102, that is, the distance between the corresponding pressure-sensitive structure 105 and the frame body 102 at the finger pressing position, will be changed into a distance d2 according to the deformation amount, and the distance d2 corresponds to the pressure-sensitive structure 105
  • the capacitance value between the frame 102 and the frame body 102 is C2.
  • the controller of the pressure sensing structure 105 can sense the corresponding capacitance value according to the distance, calculate the change of the capacitance value, and feed back the corresponding sensing signal.
  • the pressure applied to the display panel is in a corresponding relationship.
  • the pressure sensing structure 105 may be located on the side of the flexible circuit board 104 close to the frame body 102, which is the case shown in FIG. 1. In this structure, there is no flexible circuit board 104 between the pressure sensing structure 105 and the frame body 102. The barrier can improve the sensitivity of the pressure-sensitive structure to a certain extent, so that the controller that controls the pressure-sensitive structure can accurately sense different capacitance values corresponding to different distances.
  • the pressure sensing structure 105 may be located on the side of the flexible circuit board 104 away from the frame 102.
  • the pressure sensing structure 105 can also be located at other positions on the flexible circuit board 104 as long as the controller controlling the pressure sensing structure can sense the capacitance value between the pressure sensing structure 105 and the frame 102.
  • a display device with a capacitive pressure sensor usually has foam, and the capacitive pressure sensor is attached to the back of the display panel through the foam.
  • the distance between the pressure sensing structure in the pressure sensing sensor and the frame body changes to generate a sensing signal.
  • the foam will deform accordingly, and as the number of pressing operations increases, the foam will deform irreversibly. This irreversible deformation will cause the sensitivity of the pressure sensor to decrease and even lead to pressure sensitivity. Failure occurs and affects the pressure sensing function of the display device.
  • the deformation of the pressure-sensing structure has nothing to do with the foam, so there will be no pressure-sensing failure problem, which improves the stability of the pressure-sensing function of the display device.
  • the display device provided by the embodiment of the present application may have one or more flexible circuit boards, and the pressure sensing structure may be located on any one of these flexible circuit boards.
  • the display device 10 further includes a display controller 112.
  • the display controller 112 may be a display driver chip.
  • the flexible circuit board 104 is electrically connected to the display controller 112, and the flexible circuit board 104 that is electrically connected to the display controller 112 may also be referred to as a main flexible circuit board (English: Main FPC, MFPC for short).
  • the pressure sensing structure 105 is located on the main flexible circuit board.
  • the main flexible circuit board is a structure used to connect the display controller 112 and the display panel 103 inherent in the display device.
  • the main flexible circuit board can be used to transmit the signal sent by the display controller 112 to the display panel 103, so that the display panel 103 displays according to the signal.
  • the controller 101 used to control the pressure sensing structure 105 can also be multiplexed as the display controller 112, that is, the controller 101 and the display controller 112 are the same controller.
  • the controller 101 and the display controller 112 are the same controller, it is more helpful to realize the miniaturization design of the display device.
  • Figure 5 shows the case of two controllers.
  • the display controller and the main flexible circuit board can be electrically connected to the following two ways: the first: the display controller is located on the main flexible circuit board; the second: the display controller is located on the flexible substrate, through the The circuit structure on the flexible substrate electrically connects the flexible substrate with the main flexible circuit board.
  • a chip on film English: Chip On Film, abbreviation: COF
  • COF Chip On Film
  • the circuit structure on the main flexible circuit board in the display device is relatively complicated, the size of the main flexible circuit board is usually large. Therefore, if the pressure sensing structure 105 is arranged on the main flexible circuit board, there is no need to increase the size of the main flexible circuit board. , It is helpful to realize the miniaturization design of the display device, and effectively reduces the manufacturing cost of the display device with pressure sensing function.
  • the display panel in the display device may further include a touch layer, that is, the display panel may be a touch display panel, and accordingly, the display device is a touch display device.
  • the touch display device also has a touch controller.
  • the touch controller may be a touch chip (English: Touch IC).
  • the touch controller can realize the touch function in the following two ways: In the first way, the touch controller is electrically connected to the touch circuit board.
  • the touch controller can be located on the touch circuit board to This realizes the electrical connection with the touch circuit board, the touch controller is electrically connected to the main flexible circuit board through the touch circuit board, and is electrically connected to the touch layer through the main flexible circuit board; the second way to achieve The controller is electrically connected to the main flexible circuit board, for example, the touch controller can be located on the main flexible circuit board to be electrically connected to the touch circuit board, and the touch controller is electrically connected to the touch layer through the main flexible circuit board .
  • the touch display device also includes a touch sensor (English: touch sensor).
  • the touch sensor can be arranged on the light-emitting surface of the touch display panel (that is, on-cell technology), or use embedded technology (that is, in-cell technology). cell technology)
  • the touch sensor is embedded in the touch display panel.
  • the touch controller realizes the touch function by controlling the touch sensor.
  • the touch controller may be connected with the pressure sensing structure, To control the pressure sensing structure to realize the pressure sensing function.
  • the main flexible circuit board may have wires connecting the pressure sensing structure and the touch controller. In this way, the pressure sensing structure can share a touch controller with the touch sensor, and there is no need to provide an additional controller for the pressure sensing structure, which saves the manufacturing cost of the display device and realizes the miniaturization of the display device.
  • the display panel further includes a touchable layer, and accordingly, the display device is a touch display device.
  • the controller 101 connected to the pressure sensing structure 105 may be a touch controller.
  • the display device 10 also includes a display controller 112.
  • the flexible circuit board 104 is electrically connected to the display controller 112.
  • the touch controller is located on the flexible circuit board (ie, the main flexible circuit board) 104 and passes through the flexible circuit board.
  • the board is electrically connected to the touch layer, and the pressure sensing structure 105 is electrically connected to the touch controller through the flexible circuit board 104.
  • the display device 10 is a touch display device
  • the display panel 103 includes a touch layer
  • the display panel 103 is a touch display panel
  • the display device 10 further includes a touch controller 113.
  • the flexible circuit board 104 is a touch flexible circuit board, that is, the pressure sensing structure 105 is located on the touch flexible circuit board.
  • the touch flexible circuit board is a structure inherent in the display device for connecting the touch controller and the display panel.
  • the controller 101 for controlling the pressure sensing structure 105 can also be multiplexed as the touch controller 106, that is, the controller 101 and the touch controller 106 are the same controller, when When the controller 101 and the touch controller 106 are the same controller, it is more helpful to realize the miniaturization design of the display device.
  • Figure 6 shows the case of two controllers.
  • the pressure-sensitive structure 105 is directly disposed on the touch flexible circuit board inherent in the touch display device, which simplifies The structure of the display device reduces the manufacturing cost of the display device with pressure sensing function to a certain extent.
  • the pressure sensing structure may include at least one sensing substructure.
  • the pressure sensing structure may include at least two sensing substructures.
  • the distribution of the at least one inductive substructure on the flexible circuit board may have various forms.
  • the embodiment of the present application takes the following two distribution modes as examples for illustration. The following two distribution modes are described by taking the at least one inductive substructure including at least two inductive substructures as an example.
  • the orthographic projections of the at least two sensing substructures on the flexible circuit board on the back of the display panel are evenly distributed on the back of the display panel. In this way, each sensing substructure can be used to sense the pressure acting on the corresponding area of the sensing substructure, so as to realize full-screen sensing.
  • the orthographic projection of the pressure sensing structure 105 on the back of the display panel may be located at the geometric center of the back of the display panel.
  • FIG. 7 shows a top view of the structure of a flexible circuit board 104 of a display device provided by an embodiment of the present application.
  • the display device is a touch display device
  • the flexible circuit board 104 is a main flexible circuit board
  • the main flexible circuit board is There is a touch controller 106 on the flexible circuit board.
  • the wiring on the flexible circuit board connects the two sensing substructures 1051 and the touch controller 106, that is, in the touch display device, the pressure sensing structure 105 and the touch sensor (Not shown in FIG. 7) share the touch controller.
  • the flexible circuit board 104 also has a binding area 1041.
  • the binding area 1041 is used to connect the flexible circuit board 104 and the display panel (not shown in FIG. 7).
  • the flexible circuit board 104 also has a connector 1042. 1042 is used to connect the flexible circuit board 104 and the main board of the touch display device (not shown in FIG. 7).
  • FIG. 7 is an example for explaining the pressure sensing structure including two sensing substructures, and FIG. 7 only schematically shows a situation where the two sensing substructures are located on the flexible circuit board 104
  • the pressure sensing structure 105 may be located at a target position on the flexible circuit board 104, and the target position is a side of the flexible circuit board 104 away from the side where the binding area 1041 is located.
  • the pressure sensing structure 105 includes at least one sensing substructure 1051
  • the at least one sensing substructure may be arranged in a direction away from the binding area 1041.
  • the direction away from the binding area 1041 is shown in FIG. The direction x shown.
  • the binding area 1041 is usually located at the edge area of the flexible circuit board 104, or even at the edge area of the display panel, the pressure-sensitive structure 105 is arranged on the side away from the side where the binding area 1041 is located to make the pressure-sensitive structure closer to the display The center of the panel improves the accuracy of its pressure sensing.
  • full-screen sensing can be realized by setting the size of each sensing substructure 1051.
  • the size of each sensing substructure 1051 can be set according to the size of the display panel.
  • the at least two sensing substructures 1051 can be located at any position on the flexible circuit board 104.
  • the pressure sensing structure is soldered on the flexible circuit board.
  • the display device may include a pad, the pad may be a carrier substrate for supporting the pressure-sensitive structure, the pressure-sensitive structure is located on the pad, and the pressure-sensitive structure is welded to the flexible circuit board through the pad.
  • the pressure sensing structure includes at least two sensing substructures
  • the display device may include at least two pads, and the sensing substructures are respectively located on the corresponding pads, of course.
  • the sensing substructures and the pads can be in one-to-one correspondence, or many-to-one, that is, multiple sensing substructures are arranged on one pad, which is not limited in the embodiment of the present application.
  • the pressure-sensitive structure is bonded to the flexible circuit board.
  • the pressure-sensitive structure can be bonded to the flexible circuit board through double-sided tape.
  • the double-sided adhesive may be a grid-shaped double-sided adhesive.
  • the pressure-sensitive structure is a pressure-sensitive film layer capable of conducting electricity.
  • the pressure-sensitive film layer may be made of a metal material, for example, the metal material is copper.
  • FIG. 8 shows a schematic structural diagram of another display device 10 provided by an embodiment of the present application.
  • the display device 10 is an organic light emitting diode display device
  • the display panel 103 is an organic light emitting diode display panel
  • the display panel 103 is connected to There is a buffer layer 107 between the pressure sensing structures 105.
  • the buffer layer 107 may be foam.
  • the display device 10 further includes a polarizer 108 disposed on the side of the display panel 103 away from the frame 102 and a cover plate 109 disposed on the side of the polarizer 108 away from the display panel 103.
  • the cover plate 109 may be a glass cover plate.
  • FIG. 1 shows a glass cover plate.
  • the display device 10 may also be an organic light emitting diode display device with touch function, that is, the display panel 103 is an organic light emitting diode display panel with touch function. Then the display device 10 further includes a touch sensor 110, and the touch sensor is disposed on one side of the light-emitting surface of the display panel 103.
  • the touch sensor can be realized by a touch layer.
  • FIG. 9 shows a schematic structural diagram of another display device 10 provided by an embodiment of the present application.
  • the display device 10 is a liquid crystal display device
  • the display panel 103 is a liquid crystal display panel
  • the display panel 103 and the pressure sensing structure 105 A backlight module 111 is provided in between.
  • FIG. 9 shows a schematic structural diagram of another display device 10 provided by an embodiment of the present application.
  • the display device 10 is a liquid crystal display device
  • the display panel 103 is a liquid crystal display panel
  • the display panel 103 is a liquid crystal display panel
  • the display panel 103 and the pressure sensing structure 105
  • a backlight module 111 is provided in between.
  • the cover plate 109 is used to protect the display panel 103 from external wear and external impact.
  • the buffer layer 107 and the backlight module 111 are respectively used to protect the display panel 103 from excessive contact with the frame 102 during the pressing operation.
  • the display device 10 may also include a touch controller and other structures, which are not shown one by one in FIGS. 8 and 9.
  • the pressure sensing structure is connected to the controller through the flexible circuit board.
  • the flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need Separately providing the pressure sensing structure with a supporting substrate and a flexible circuit board and other structures simplifies the structure of the display device and reduces the manufacturing cost of the display device with the pressure sensing function to a certain extent.
  • the embodiments of the present application provide a terminal, which may include the display device described in the above embodiments, and the terminal may be a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc., which has a display function The product.

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Abstract

The present application relates to the technical field of display. Disclosed are a display apparatus and a terminal. The display apparatus comprises a controller, a bezel, a display panel, a flexible printed circuit, and a force sensing structure. The force sensing structure is connected to the controller by means of the flexible printed circuit, and the flexible printed circuit is an inherent flexible printed circuit in the display apparatus; therefore, there is no need to separately provide structures such as a bearing substrate and a flexible printed circuit for the force sensing structure, the structure of the display apparatus is simplified, the problem in the related art of a complex structure of the display apparatus is solved, and the manufacturing costs for a display apparatus having a force sensing function are reduced to a certain extent.

Description

显示装置及终端Display device and terminal 技术领域Technical field
本申请涉及显示技术领域，特别涉及一种显示装置及终端。This application relates to the field of display technology, and in particular to a display device and a terminal.
背景技术Background technique
随着科技的发展，目前的显示装置中可以具有压力感应功能，以检测用户针对显示装置的显示面板进行的压力操作。其中，检测压力操作由显示装置中的压力感应传感器(英文：force sensor)实现。With the development of technology, the current display device may have a pressure sensing function to detect the pressure operation performed by the user on the display panel of the display device. Among them, the pressure detection operation is implemented by a pressure sensor (English: force sensor) in the display device.
相关技术的显示装置中，压力感应传感器包括从下到上层叠设置的承载基板、柔性线路板(英文：Flexible Printed Circuit，简称：FPC)以及压力感应结构等结构，该压力感应传感器设置于显示装置中显示面板与显示装置的框体之间，利用压力感应传感器的压力感应结构与该框体之间的间隙变化来感测压力值。In the related art display device, the pressure-sensitive sensor includes a carrier substrate, a flexible printed circuit (English: Flexible Printed Circuit, FPC for short), a pressure-sensitive structure and other structures stacked from bottom to top, and the pressure-sensitive sensor is arranged on the display device. Between the display panel and the frame of the display device, the pressure value is sensed by the change of the gap between the pressure sensing structure of the pressure sensor and the frame.
发明内容Summary of the invention
本申请实施例提供了一种显示装置及终端。所述技术方案如下：The embodiments of the present application provide a display device and a terminal. The technical solution is as follows:
第一方面，提供了一种显示装置，所述显示装置包括控制器、框体、显示面板、柔性电路板以及压力感应结构；In a first aspect, a display device is provided, which includes a controller, a frame, a display panel, a flexible circuit board, and a pressure sensing structure;
所述柔性电路板位于所述显示面板的背面，且与所述显示面板电连接，所述控制器与所述柔性电路板电连接，所述显示面板的背面为与所述显示面板的出光面相对的一面；The flexible circuit board is located on the back of the display panel and is electrically connected to the display panel, the controller is electrically connected to the flexible circuit board, and the back of the display panel is the light-emitting surface of the display panel The opposite side
所述压力感应结构位于所述柔性电路板上，所述压力感应结构通过所述柔性电路板与所述控制器电连接，所述框体位于所述柔性电路板远离所述显示面板的一侧，所述框体与所述压力感应结构之间存在指定距离。The pressure sensing structure is located on the flexible circuit board, the pressure sensing structure is electrically connected to the controller through the flexible circuit board, and the frame is located on a side of the flexible circuit board away from the display panel , There is a designated distance between the frame and the pressure sensing structure.
可选的，所述压力感应结构位于所述柔性电路板靠近所述框体的一面上。Optionally, the pressure sensing structure is located on a side of the flexible circuit board close to the frame.
可选的，所述显示装置还包括显示控制器，所述柔性电路板与显示控制器电连接。Optionally, the display device further includes a display controller, and the flexible circuit board is electrically connected to the display controller.
可选的，所述显示面板还包括触控层，所述显示装置包括触控控制器，所 述触控控制器与所述柔性电路板电连接，且通过所述柔性电路板与所述触控层电连接。Optionally, the display panel further includes a touch layer, the display device includes a touch controller, the touch controller is electrically connected to the flexible circuit board, and the touch controller is electrically connected to the flexible circuit board through the flexible circuit board. The control layer is electrically connected.
可选的，所述显示面板还包括触控层，所述控制器为触控控制器，Optionally, the display panel further includes a touch layer, and the controller is a touch controller,
所述显示装置还包括显示控制器，所述柔性电路板与所述显示控制器电连接，The display device further includes a display controller, and the flexible circuit board is electrically connected to the display controller,
所述触控控制器位于所述柔性电路板，且通过所述柔性电路板与所述触控层电连接，所述压力感应结构通过所述柔性电路板与所述触控控制器电连接。The touch controller is located on the flexible circuit board and is electrically connected to the touch layer through the flexible circuit board, and the pressure sensing structure is electrically connected to the touch controller through the flexible circuit board.
可选的，所述压力感应结构包括至少一个感应子结构。Optionally, the pressure sensing structure includes at least one sensing substructure.
可选的，所述至少一个感应子结构包括至少两个感应子结构，所述至少两个感应子结构在所述显示面板的背面的正投影均匀分布于所述显示面板的背面。Optionally, the at least one sensing substructure includes at least two sensing substructures, and orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on the back of the display panel.
可选的，所述压力感应结构与所述柔性电路板焊接。Optionally, the pressure sensing structure is welded to the flexible circuit board.
可选的，所述压力感应结构与所述柔性电路板粘结。Optionally, the pressure sensing structure is bonded to the flexible circuit board.
可选的，所述压力感应结构通过网格状双面胶与所述柔性电路板粘结。Optionally, the pressure sensing structure is bonded to the flexible circuit board through a grid-shaped double-sided tape.
可选的，所述柔性电路板上具有绑定区，所述柔性电路板通过所述绑定区与所述显示面板电连接，所述压力感应结构位于所述柔性电路板上的目标位置，所述目标位置位于所述柔性电路板上远离所述绑定区所在侧的一侧；Optionally, the flexible circuit board has a binding area, the flexible circuit board is electrically connected to the display panel through the binding area, and the pressure sensing structure is located at a target position on the flexible circuit board, The target position is located on a side of the flexible circuit board far from the side where the binding area is located;
所述压力感应结构包括至少一个感应子结构，所述至少一个感应子结构沿远离所述绑定区的方向上排列。The pressure sensing structure includes at least one sensing substructure, and the at least one sensing substructure is arranged in a direction away from the binding area.
可选的，所述显示面板为有机发光二极管显示面板，所述有机发光二极管显示面板与所述压力感应结构之间具有缓冲层；Optionally, the display panel is an organic light emitting diode display panel, and a buffer layer is provided between the organic light emitting diode display panel and the pressure sensing structure;
所述显示装置还包括偏光片、盖板以及触控传感器；The display device further includes a polarizer, a cover plate, and a touch sensor;
所述触控传感器位于所述显示面板远离所述框体的一侧；The touch sensor is located on a side of the display panel away from the frame;
所述偏光片位于所述触控传感器远离所述框体的一侧；The polarizer is located on a side of the touch sensor away from the frame;
所述盖板位于所述偏光片远离所述框体的一侧。The cover plate is located on the side of the polarizer away from the frame.
可选的，所述显示面板为液晶显示面板，所述液晶显示面板与所述压力感应结构之间具有背光模组；Optionally, the display panel is a liquid crystal display panel, and a backlight module is provided between the liquid crystal display panel and the pressure sensing structure;
所述显示装置还包括偏光片、盖板以及触控传感器；The display device further includes a polarizer, a cover plate, and a touch sensor;
所述触控传感器位于所述显示面板远离所述框体的一侧；The touch sensor is located on a side of the display panel away from the frame;
所述偏光片位于所述触控传感器远离所述框体的一侧；The polarizer is located on a side of the touch sensor away from the frame;
所述盖板位于所述偏光片远离所述框体的一侧。The cover plate is located on the side of the polarizer away from the frame.
可选的，所述显示装置还包括显示控制器，所述压力感应结构位于所述柔性电路板靠近所述框体的一面上；Optionally, the display device further includes a display controller, and the pressure sensing structure is located on a side of the flexible circuit board close to the frame;
所述柔性电路板与所述显示控制器电连接；The flexible circuit board is electrically connected to the display controller;
所述显示面板还包括触控层，所述控制器为触控控制器，所述触控控制器位于所述柔性电路板上，且通过所述柔性电路板与所述触控层电连接，所述压力感应结构通过所述柔性电路板与所述触控控制器电连接；The display panel further includes a touch layer, the controller is a touch controller, the touch controller is located on the flexible circuit board, and is electrically connected to the touch layer through the flexible circuit board, The pressure sensing structure is electrically connected to the touch controller through the flexible circuit board;
所述压力感应结构包括至少两个感应子结构，所述至少两个感应子结构在所述显示面板的背面的正投影均匀分布于所述显示面板的背面。The pressure sensing structure includes at least two sensing substructures, and orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on the back of the display panel.
第二方面，提供了一种终端，所述终端包括第一方面任一所述的显示装置。In a second aspect, a terminal is provided, and the terminal includes the display device of any one of the first aspects.
本申请实施例提供的技术方案带来的有益效果至少包括：The beneficial effects brought by the technical solutions provided by the embodiments of the present application include at least:
通过将压力感应结构通过柔性电路板与控制器连接，该连接有控制器的柔性电路板为显示装置中的固有柔性电路板，因此无需单独为该压力感应结构设置承载基板以及柔性线路板等结构，简化了显示装置的结构，在一定程度上降低了具有压力感应功能的显示装置的制作成本。By connecting the pressure-sensitive structure to the controller through a flexible circuit board, the flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need to separately provide a carrier substrate and a flexible circuit board for the pressure-sensitive structure , The structure of the display device is simplified, and the manufacturing cost of the display device with pressure sensing function is reduced to a certain extent.
附图说明Description of the drawings
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.
图1是本申请实施例提供的一种显示装置的结构示意图；FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application;
图2是本申请实施例提供的压力感应结构，在手指未对显示面板施加压力的状态下，压力感应结构与框体的示意图；2 is a schematic diagram of the pressure sensing structure and the frame body in the state where the finger does not apply pressure to the display panel according to the pressure sensing structure provided by the embodiment of the present application;
图3是本申请实施例提供的压力感应结构，在手指对显示面板施加压力的状态下，压力感应结构与框体的示意图；FIG. 3 is a schematic diagram of the pressure sensing structure and the frame body in the state where the pressure is applied to the display panel by the finger according to the pressure sensing structure provided by the embodiment of the present application;
图4是本申请实施例提供的另一种显示装置的结构示意图；4 is a schematic structural diagram of another display device provided by an embodiment of the present application;
图5是本申请实施例提供的另一种显示装置的结构示意图；FIG. 5 is a schematic structural diagram of another display device provided by an embodiment of the present application;
图6是本申请实施例提供的另一种显示装置的结构示意图；6 is a schematic structural diagram of another display device provided by an embodiment of the present application;
图7是本申请实施例提供的一种主柔性电路板的结构俯视图；FIG. 7 is a top view of the structure of a main flexible circuit board provided by an embodiment of the present application;
图8示出了本申请实施例提供的又一种显示装置的结构示意图；FIG. 8 shows a schematic structural diagram of another display device provided by an embodiment of the present application;
图9示出了本申请实施例提供的又一种显示装置的结构示意图。FIG. 9 shows a schematic structural diagram of another display device provided by an embodiment of the present application.
具体实施方式detailed description
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。In order to make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.
随着科技的发展，终端能够实现的功能越来越多，其中一种常用的功能是压力感应功能。以移动终端为例，移动终端的显示模组中集成的压力感应功能可以用于实现屏下指纹、屏下摄像头以及屏下压力感应等功能。With the development of science and technology, more and more functions can be realized by the terminal. One of the commonly used functions is the pressure sensing function. Taking a mobile terminal as an example, the pressure sensing function integrated in the display module of the mobile terminal can be used to implement functions such as under-screen fingerprints, under-screen cameras, and under-screen pressure sensing.
其中，屏下指纹是一种新兴的功能，在显示行业越来越多地被应用，若将屏下指纹与屏下压力感应的配合使用，可以更好地提升用户体验。Among them, the under-screen fingerprint is an emerging function, which is increasingly used in the display industry. If the under-screen fingerprint is used in conjunction with the under-screen pressure sensor, the user experience can be better improved.
屏下压力感应通过压力传感器(英文：force sensor)实现，压力传感器可以为电容式传感器或者为电阻式传感器。本申请实施例以电容式传感器为例进行说明。The under-screen pressure sensing is realized by a pressure sensor (English: force sensor), which can be a capacitive sensor or a resistive sensor. The embodiment of the present application takes a capacitive sensor as an example for description.
目前，在一种实施方式中，电容式传感器可以通过在显示面板的背面贴附一整面的压力感应传感器来实现屏下压力感应功能。但是，该方案中，需要首先将该压力感应传感器制作完成然后再贴附于显示面板的背面，该制作完成的压力感应传感器包括层叠设置的承载基板、柔性线路板以及压力感应结构等结构。其中，压力感应传感器的柔性线路板通过外挂的引线与显示装置中的固有柔性线路板电连接。如此设置不但导致该压力感应传感器的制作工艺和结构均较为复杂并且制作成本较高。另外，由于引线通常较为脆弱，易发生断裂导致压力感应传感器的稳定性较差。相应的，具有该压力传感器的显示装置的制作工艺和结构也均较为复杂，制作成本较高，稳定性较差。并且，该方案还会导致显示装置厚度的增加。At present, in one embodiment, the capacitive sensor can realize the under-screen pressure sensing function by attaching a pressure sensing sensor on the entire surface to the back of the display panel. However, in this solution, the pressure-sensitive sensor needs to be manufactured first and then attached to the back of the display panel. The finished pressure-sensitive sensor includes a laminated carrier substrate, a flexible circuit board, and a pressure-sensitive structure. Wherein, the flexible circuit board of the pressure sensor is electrically connected to the inherent flexible circuit board in the display device through the external lead. Such an arrangement not only causes the manufacturing process and structure of the pressure sensor to be more complicated, and the manufacturing cost is higher. In addition, since the lead wire is usually fragile and easy to break, the stability of the pressure sensor sensor is poor. Correspondingly, the manufacturing process and structure of the display device with the pressure sensor are also relatively complicated, the manufacturing cost is relatively high, and the stability is poor. Moreover, this solution will also lead to an increase in the thickness of the display device.
本申请实施例提供了一种显示装置，可以解决相关技术中存在的技术问题。如图1所示，该显示装置10包括控制器101、框体102、显示面板103、柔性电路板104以及压力感应结构105。The embodiment of the present application provides a display device, which can solve technical problems existing in related technologies. As shown in FIG. 1, the display device 10 includes a controller 101, a frame body 102, a display panel 103, a flexible circuit board 104 and a pressure sensing structure 105.
柔性电路板104位于显示面板103的背面，且与显示面板103电连接，显示面板103的背面为与显示面板103的出光面相对的一面。The flexible circuit board 104 is located on the back of the display panel 103 and is electrically connected to the display panel 103. The back of the display panel 103 is the side opposite to the light-emitting surface of the display panel 103.
压力感应结构105位于柔性电路板104上，压力感应结构105通过柔性电路板104与控制器101电连接，框体102位于柔性电路板104远离显示面板103的一侧，框体102与压力感应结构105之间存在指定距离。The pressure sensing structure 105 is located on the flexible circuit board 104. The pressure sensing structure 105 is electrically connected to the controller 101 through the flexible circuit board 104. The frame 102 is located on the side of the flexible circuit board 104 away from the display panel 103. The frame 102 and the pressure sensing structure There is a specified distance between 105.
本申请实施例中显示装置通过框体102与压力感应结构105之间的距离变化来感知电容变化，进而实现压力感应功能。该指定距离指的是能够感测到电容变化的最大距离。若框体102与压力感应结构105之间的距离超过该最大距离，则即使通过按压使得框体102与压力感应结构105之间的距离发生了变化，也难以通过该距离的变化感测到电容的变化，如此则无法实现压力感应功能。可选的，框体102为用于承载显示面板103的框架结构，例如框体102为中框。In the embodiment of the present application, the display device senses the capacitance change through the change of the distance between the frame body 102 and the pressure sensing structure 105, thereby realizing the pressure sensing function. The specified distance refers to the maximum distance at which capacitance changes can be sensed. If the distance between the frame 102 and the pressure-sensitive structure 105 exceeds the maximum distance, even if the distance between the frame 102 and the pressure-sensitive structure 105 changes by pressing, it is difficult to sense the capacitance through the change in the distance. In this way, the pressure sensing function cannot be realized. Optionally, the frame 102 is a frame structure for carrying the display panel 103, for example, the frame 102 is a middle frame.
综上所述，本申请实施例提供的显示装置中，压力感应结构通过柔性电路板与控制器连接，该连接有控制器的柔性电路板为显示装置中的固有柔性电路板，因此无需单独为该压力感应结构设置承载基板以及柔性线路板等结构，简化了显示装置的结构，在一定程度上降低了具有压力感应功能的显示装置的制作成本。In summary, in the display device provided by the embodiment of the present application, the pressure sensing structure is connected to the controller through a flexible circuit board, and the flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need to separately The pressure sensing structure is provided with a supporting substrate, a flexible circuit board and other structures, which simplifies the structure of the display device and reduces the manufacturing cost of the display device with pressure sensing function to a certain extent.
并且，相较于相关技术中需要在显示面板的背面贴上一整面的压力感应传感器，由于本申请实施例中无需在显示面板的背面贴上一整面的压力感应传感器，因此，无需增加显示装置中叠层的厚度，有助于实现显示装置的轻薄化；由于本申请实施例中的压力感应结构位于柔性电路板上，无需采用引线的方式将压力感应传感器的柔性电路板外挂于显示装置的固有柔性电路板上，因此，相较于相关技术，本申请实施例提供的显示装置，增加了压力感应功能的可靠性和稳定性。Moreover, compared with the related art that requires a full-surface pressure sensor to be pasted on the back of the display panel, since there is no need to paste a full-surface pressure sensor on the back of the display panel in the embodiment of the present application, there is no need to add The thickness of the laminated layer in the display device helps to realize the lightness and thinness of the display device; since the pressure sensing structure in the embodiment of the present application is located on the flexible circuit board, there is no need to use the lead to hang the flexible circuit board of the pressure sensing sensor on the display The inherent flexible circuit board of the device, therefore, compared with the related art, the display device provided by the embodiment of the present application increases the reliability and stability of the pressure sensing function.
图2和图3示出了本申请实施例中压力感应结构的工作原理，本申请实施例所描述的显示装置中的压力感应结构基于电容式传感器的工作原理。其中，图2示出的是手指未对显示面板(图2中未示出)施加压力的状态下，压力感应结构105与框体102的示意图。图3示出的是手指对显示面板(图3中未示出)施加压力的状态下，压力感应结构105与框体102的示意图。2 and 3 show the working principle of the pressure sensing structure in the embodiment of the present application. The pressure sensing structure in the display device described in the embodiment of the present application is based on the working principle of a capacitive sensor. Wherein, FIG. 2 shows a schematic diagram of the pressure sensing structure 105 and the frame body 102 when the finger does not apply pressure to the display panel (not shown in FIG. 2). FIG. 3 shows a schematic diagram of the pressure sensing structure 105 and the frame body 102 in a state where a finger applies pressure to the display panel (not shown in FIG. 3).
从图2中可以看出，在手指未对显示面板施加压力的状态下，压力感应结构105与框体102之间具有固定距离d1，该固定距离d1对应的压力感应结构105与框体102之间的电容值为C1；从图3中可以看出，在手指对显示面板施 加压力上的状态下，压力感应结构105会随着手指的按压力度产生一定的形变量，压力感应结构105与框体102之间的最短间距，也即是，手指按压位置处对应的压力感应结构105与框体102之间的间距，会根据该形变量变为距离d2，该距离d2对应的压力感应结构105与框体102之间的电容值为C2，压力感应结构105的控制器可以根据距离感测出对应的电容值，计算出电容值的变化量，并反馈出对应的感应信号，该感应信号与施加在显示面板上的压力大小呈对应关系。It can be seen from FIG. 2 that when the finger is not applying pressure to the display panel, there is a fixed distance d1 between the pressure sensing structure 105 and the frame 102, and the fixed distance d1 corresponds to the pressure sensing structure 105 and the frame 102 The capacitance value between the two is C1; it can be seen from Fig. 3 that when the finger presses on the display panel, the pressure-sensitive structure 105 will produce a certain amount of deformation with the pressing force of the finger. The pressure-sensitive structure 105 and the frame The shortest distance between the bodies 102, that is, the distance between the corresponding pressure-sensitive structure 105 and the frame body 102 at the finger pressing position, will be changed into a distance d2 according to the deformation amount, and the distance d2 corresponds to the pressure-sensitive structure 105 The capacitance value between the frame 102 and the frame body 102 is C2. The controller of the pressure sensing structure 105 can sense the corresponding capacitance value according to the distance, calculate the change of the capacitance value, and feed back the corresponding sensing signal. The pressure applied to the display panel is in a corresponding relationship.
可选的，压力感应结构105可以位于柔性电路板104靠近框体102的一面上，即图1中所示的情况，如此结构下，压力感应结构105和框体102之间没有柔性电路板104的阻挡，可以在一定程度上提高压力感应结构的灵敏程度，进而便于控制压力感应结构的控制器能够准确感测出不同距离对应的不同电容值。在其他可选的实施例中，如图4所示，压力感应结构105可以位于柔性电路板104远离框体102的一面上。当然，压力感应结构105也可以位于柔性电路板104上的其他位置，只要使得控制压力感应结构的控制器能够感测出压力感应结构105与框体102之间的电容值即可。Optionally, the pressure sensing structure 105 may be located on the side of the flexible circuit board 104 close to the frame body 102, which is the case shown in FIG. 1. In this structure, there is no flexible circuit board 104 between the pressure sensing structure 105 and the frame body 102. The barrier can improve the sensitivity of the pressure-sensitive structure to a certain extent, so that the controller that controls the pressure-sensitive structure can accurately sense different capacitance values corresponding to different distances. In other optional embodiments, as shown in FIG. 4, the pressure sensing structure 105 may be located on the side of the flexible circuit board 104 away from the frame 102. Of course, the pressure sensing structure 105 can also be located at other positions on the flexible circuit board 104 as long as the controller controlling the pressure sensing structure can sense the capacitance value between the pressure sensing structure 105 and the frame 102.
目前，具有电容式压力感应传感器的显示装置中通常具有泡棉，该电容式压力感应传感器通过泡棉贴附于显示面板的背面。在对显示面板进行按压操作时，压力感应传感器中的压力感应结构与框体的间距发生变化进而产生感应信号。在进行按压操作时，泡棉也会发生相应的形变，并且随着按压操作次数的增多，泡棉会产生不可逆的形变，该不可逆的形变会导致压力感应传感器的灵敏性降低，甚至导致压感失效的现象发生，影响该显示装置压力感应功能。而本申请实施例中所描述的压力感应结构中，压力感应结构的形变量与泡棉无关，因此不会出现压感失效的问题，提高了显示装置的压力感应功能的稳定性。Currently, a display device with a capacitive pressure sensor usually has foam, and the capacitive pressure sensor is attached to the back of the display panel through the foam. When the display panel is pressed, the distance between the pressure sensing structure in the pressure sensing sensor and the frame body changes to generate a sensing signal. When the pressing operation is performed, the foam will deform accordingly, and as the number of pressing operations increases, the foam will deform irreversibly. This irreversible deformation will cause the sensitivity of the pressure sensor to decrease and even lead to pressure sensitivity. Failure occurs and affects the pressure sensing function of the display device. In the pressure-sensing structure described in the embodiments of the present application, the deformation of the pressure-sensing structure has nothing to do with the foam, so there will be no pressure-sensing failure problem, which improves the stability of the pressure-sensing function of the display device.
本申请实施例提供的显示装置中，可以具有一个或多个柔性电路板，压力感应结构可以位于这些柔性电路板中的任意一个上。The display device provided by the embodiment of the present application may have one or more flexible circuit boards, and the pressure sensing structure may be located on any one of these flexible circuit boards.
在一种实施方式中，请参考图5，显示装置10还包括显示控制器112。可选的，显示控制器112可以为显示驱动芯片。柔性电路板104与显示控制器112电连接，该与显示控制器112电连接的柔性电路板104也可以称为主柔性电路板(英文：Main FPC，简称：MFPC)。压力感应结构105位于该主柔性电路板上。其中，主柔性电路板是显示装置中固有的一种用于将显示控制器112与显 示面板103连接的结构。该主柔性电路板可以用于将显示控制器112发出的信号输送至显示面板103，使得显示面板103根据该信号进行显示。在其他可选的实施方式中，用于控制压力感应结构105的控制器101也可以复用为显示控制器112，也即是，控制器101与显示控制器112为同一控制器，当控制器101与显示控制器112为同一控制器时，更有助于实现显示装置的小型化设计。当然，图5示出的是两个控制器的情况。In one embodiment, referring to FIG. 5, the display device 10 further includes a display controller 112. Optionally, the display controller 112 may be a display driver chip. The flexible circuit board 104 is electrically connected to the display controller 112, and the flexible circuit board 104 that is electrically connected to the display controller 112 may also be referred to as a main flexible circuit board (English: Main FPC, MFPC for short). The pressure sensing structure 105 is located on the main flexible circuit board. Among them, the main flexible circuit board is a structure used to connect the display controller 112 and the display panel 103 inherent in the display device. The main flexible circuit board can be used to transmit the signal sent by the display controller 112 to the display panel 103, so that the display panel 103 displays according to the signal. In other alternative embodiments, the controller 101 used to control the pressure sensing structure 105 can also be multiplexed as the display controller 112, that is, the controller 101 and the display controller 112 are the same controller. When 101 and the display controller 112 are the same controller, it is more helpful to realize the miniaturization design of the display device. Of course, Figure 5 shows the case of two controllers.
其中，显示控制器与主柔性电路板电连接的方式可以包括以下两种：第一种：显示控制器位于该主柔性电路板上；第二种情况：显示控制器位于柔性基底上，通过该柔性基底上的电路结构将该柔性基底与主柔性电路板电连接，例如采用覆晶薄膜封装(英文：Chip On Film，缩写：COF)技术将显示控制器固定于柔性基底上。Among them, the display controller and the main flexible circuit board can be electrically connected to the following two ways: the first: the display controller is located on the main flexible circuit board; the second: the display controller is located on the flexible substrate, through the The circuit structure on the flexible substrate electrically connects the flexible substrate with the main flexible circuit board. For example, a chip on film (English: Chip On Film, abbreviation: COF) technology is used to fix the display controller on the flexible substrate.
由于显示装置中主柔性电路板上的电路结构较为复杂，使得其尺寸通常较大，因此，若将压力感应结构105设置于该主柔性电路板上，无需额外增大该主柔性电路板的尺寸，有助于实现显示装置的小型化设计，且有效降低了具有压力感应功能的显示装置的制作成本。Since the circuit structure on the main flexible circuit board in the display device is relatively complicated, the size of the main flexible circuit board is usually large. Therefore, if the pressure sensing structure 105 is arranged on the main flexible circuit board, there is no need to increase the size of the main flexible circuit board. , It is helpful to realize the miniaturization design of the display device, and effectively reduces the manufacturing cost of the display device with pressure sensing function.
可选的，显示装置中的显示面板还可以包括触控层，也即是该显示面板可以为触控显示面板，则相应的，显示装置为触控显示装置。该触控显示装置中除显示控制器之外还具有触控控制器，可选的，该触控控制器可以为触控芯片(英文：Touch IC)。Optionally, the display panel in the display device may further include a touch layer, that is, the display panel may be a touch display panel, and accordingly, the display device is a touch display device. In addition to the display controller, the touch display device also has a touch controller. Optionally, the touch controller may be a touch chip (English: Touch IC).
触控控制器实现该触控功能可以通过以下两种实现方式：第一种实现方式，触控控制器与触控电路板电连接，例如触控控制器可以位于该触控电路板上，以此实现与该触控电路板的电连接，触控控制器通过触控电路板与主柔性电路板电连接，且通过主柔性电路板与触控层电连接；第二种实现方式，触控控制器与主柔性电路板电连接，例如触控控制器可以位于该主柔性电路板上，以此与该触控电路板电连接，触控控制器通过主柔性电路板与触控层电连接。The touch controller can realize the touch function in the following two ways: In the first way, the touch controller is electrically connected to the touch circuit board. For example, the touch controller can be located on the touch circuit board to This realizes the electrical connection with the touch circuit board, the touch controller is electrically connected to the main flexible circuit board through the touch circuit board, and is electrically connected to the touch layer through the main flexible circuit board; the second way to achieve The controller is electrically connected to the main flexible circuit board, for example, the touch controller can be located on the main flexible circuit board to be electrically connected to the touch circuit board, and the touch controller is electrically connected to the touch layer through the main flexible circuit board .
在上述第二种实现方式中，由于无需为该触控控制器额外设置柔性电路板，也即是，无需在显示装置中设置用于连接触控控制器的触控电路板，因此，不但节约了显示装置的制作成本，并且实现了触控功能与显示功能的一体化，有助于实现显示装置的小型化。In the above-mentioned second implementation manner, since there is no need to additionally provide a flexible circuit board for the touch controller, that is, there is no need to provide a touch circuit board for connecting the touch controller in the display device. The manufacturing cost of the display device is reduced, and the integration of the touch function and the display function is realized, which helps to realize the miniaturization of the display device.
当然，触控显示装置还包括触控传感器(英文：touch sensor)，触控传感器 可以设置于触控显示面板的出光面的一面(即on-cell技术)，或者采用内嵌技术(即in-cell技术)将该触控传感器内嵌于触控显示面板中。触控控制器通过控制触控传感器以实现触控功能。Of course, the touch display device also includes a touch sensor (English: touch sensor). The touch sensor can be arranged on the light-emitting surface of the touch display panel (that is, on-cell technology), or use embedded technology (that is, in-cell technology). cell technology) The touch sensor is embedded in the touch display panel. The touch controller realizes the touch function by controlling the touch sensor.
在本申请实施例的另一个可选的实现方式中，无论该触控控制器位于主柔性电路板上或是位于触控电路板上，该触控控制器可以均与压力感应结构连接，用于控制压力感应结构实现压力感应功能。当该触控控制器位于主柔性电路板上时，该主柔性电路板上可以具有连接压力感应结构与触控控制器的走线。如此使得压力感应结构能够与触控传感器共用一个触控控制器，无需额外为压力感应结构设置控制器，节约了显示装置的制作成本的同时也实现了显示装置的小型化。In another optional implementation manner of the embodiment of the present application, whether the touch controller is located on the main flexible circuit board or on the touch circuit board, the touch controller may be connected with the pressure sensing structure, To control the pressure sensing structure to realize the pressure sensing function. When the touch controller is located on the main flexible circuit board, the main flexible circuit board may have wires connecting the pressure sensing structure and the touch controller. In this way, the pressure sensing structure can share a touch controller with the touch sensor, and there is no need to provide an additional controller for the pressure sensing structure, which saves the manufacturing cost of the display device and realizes the miniaturization of the display device.
可选的，显示面板还包括可以触控层，则相应的，显示装置为触控显示装置。在图5中，与压力感应结构105连接的控制器101可以为触控控制器。除此之外，显示装置10还包括显示控制器112，柔性电路板104与显示控制器112电连接，触控控制器位于该柔性电路板(即主柔性电路板)104上，且通过柔性电路板与触控层电连接，压力感应结构105通过柔性电路板104与触控控制器电连接。Optionally, the display panel further includes a touchable layer, and accordingly, the display device is a touch display device. In FIG. 5, the controller 101 connected to the pressure sensing structure 105 may be a touch controller. In addition, the display device 10 also includes a display controller 112. The flexible circuit board 104 is electrically connected to the display controller 112. The touch controller is located on the flexible circuit board (ie, the main flexible circuit board) 104 and passes through the flexible circuit board. The board is electrically connected to the touch layer, and the pressure sensing structure 105 is electrically connected to the touch controller through the flexible circuit board 104.
在该实现方式中，由于无需为压力感应结构设置额外的控制器，且无需为触控控制器设置额外的触摸柔性电路板。因此简化了显示装置的结构，在一定程度上降低了具有压力感应功能的显示装置的制作成本。In this implementation, there is no need to provide an additional controller for the pressure sensing structure, and there is no need to provide an additional touch flexible circuit board for the touch controller. Therefore, the structure of the display device is simplified, and the manufacturing cost of the display device with pressure sensing function is reduced to a certain extent.
在另一种实施方式中，请参考图6，显示装置10为触控显示装置，显示面板103包括触控层，显示面板103为触控显示面板，显示装置10还包括触控控制器113，柔性电路板104为触摸柔性电路板，也即是，压力感应结构105位于触摸柔性电路板上。其中，触摸柔性电路板是显示装置中固有的一种用于将触控控制器与显示面板连接的结构。在其他可选的实施方式中，用于控制压力感应结构105的控制器101也可以复用为触控控制器106，也即是，控制器101与触控控制器106为同一控制器，当控制器101与触控控制器106为同一控制器时，更有助于实现显示装置的小型化设计。当然，图6示出的是两个控制器的情况。In another embodiment, referring to FIG. 6, the display device 10 is a touch display device, the display panel 103 includes a touch layer, the display panel 103 is a touch display panel, and the display device 10 further includes a touch controller 113. The flexible circuit board 104 is a touch flexible circuit board, that is, the pressure sensing structure 105 is located on the touch flexible circuit board. Among them, the touch flexible circuit board is a structure inherent in the display device for connecting the touch controller and the display panel. In other optional embodiments, the controller 101 for controlling the pressure sensing structure 105 can also be multiplexed as the touch controller 106, that is, the controller 101 and the touch controller 106 are the same controller, when When the controller 101 and the touch controller 106 are the same controller, it is more helpful to realize the miniaturization design of the display device. Of course, Figure 6 shows the case of two controllers.
在该种实现方式中，由于无需单独为该压力感应结构设置承载基板以及柔性线路板等结构，而是将该压力感应结构105直接设置于触控显示装置中固有 的触摸柔性电路板上，简化了显示装置的结构，在一定程度上降低了具有压力感应功能的显示装置的制作成本。In this implementation, since there is no need to separately provide the pressure-sensitive structure with a carrier substrate and flexible circuit board and other structures, the pressure-sensitive structure 105 is directly disposed on the touch flexible circuit board inherent in the touch display device, which simplifies The structure of the display device reduces the manufacturing cost of the display device with pressure sensing function to a certain extent.
可选的，压力感应结构可以包括至少一个感应子结构，示例的，压力感应结构可以包括至少两个感应子结构。该至少一个感应子结构在柔性电路板上的分布可以有多种形式，本申请实施例以以下两种分布方式为例进行说明。以下两种分布方式均以该至少一个感应子结构包括至少两个感应子结构为例进行说明。Optionally, the pressure sensing structure may include at least one sensing substructure. For example, the pressure sensing structure may include at least two sensing substructures. The distribution of the at least one inductive substructure on the flexible circuit board may have various forms. The embodiment of the present application takes the following two distribution modes as examples for illustration. The following two distribution modes are described by taking the at least one inductive substructure including at least two inductive substructures as an example.
在第一种分布方式中，该位于柔性电路板上的至少两个感应子结构在显示面板的背面的正投影均匀分布于显示面板的背面。如此可以使得每个感应子结构可以分别用于感测作用于该感应子结构对应的区域的压力，以实现全面屏感应。In the first distribution method, the orthographic projections of the at least two sensing substructures on the flexible circuit board on the back of the display panel are evenly distributed on the back of the display panel. In this way, each sensing substructure can be used to sense the pressure acting on the corresponding area of the sensing substructure, so as to realize full-screen sensing.
在第二种分布方式中，压力感应结构105在显示面板(图中未示出)的背面的正投影可以位于显示面板的背面的几何中心。In the second distribution method, the orthographic projection of the pressure sensing structure 105 on the back of the display panel (not shown in the figure) may be located at the geometric center of the back of the display panel.
图7示出的是本申请实施例提供的一种显示装置的柔性电路板104的结构俯视图，该显示装置为触控显示装置，该柔性电路板104为主柔性电路板，该主柔性电路板上具有触控控制器106，柔性电路板上的走线连接该两个感应子结构1051以及该触控控制器106，也就是说，该触控显示装置中，压力感应结构105与触控传感器(图7中未示出)共用该触控控制器。另外，柔性电路板104上还具有绑定区1041，绑定区1041用于连接柔性电路板104和显示面板(图7中未示出)，柔性电路板104上还具有连接器1042，连接器1042用于连接柔性电路板104和触控显示装置的主板(图7中未示出)。图7是以压力感应结构包括两个感应子结构为例进行说明，且图7仅示意性地示出了该两个感应子结构位于柔性电路板104上的情况FIG. 7 shows a top view of the structure of a flexible circuit board 104 of a display device provided by an embodiment of the present application. The display device is a touch display device, the flexible circuit board 104 is a main flexible circuit board, and the main flexible circuit board is There is a touch controller 106 on the flexible circuit board. The wiring on the flexible circuit board connects the two sensing substructures 1051 and the touch controller 106, that is, in the touch display device, the pressure sensing structure 105 and the touch sensor (Not shown in FIG. 7) share the touch controller. In addition, the flexible circuit board 104 also has a binding area 1041. The binding area 1041 is used to connect the flexible circuit board 104 and the display panel (not shown in FIG. 7). The flexible circuit board 104 also has a connector 1042. 1042 is used to connect the flexible circuit board 104 and the main board of the touch display device (not shown in FIG. 7). FIG. 7 is an example for explaining the pressure sensing structure including two sensing substructures, and FIG. 7 only schematically shows a situation where the two sensing substructures are located on the flexible circuit board 104
可选的，压力感应结构105可以位于柔性电路板104上的目标位置，该目标位置为柔性电路板104上远离绑定区1041所在侧的一侧。当压力感应结构105包括至少一个感应子结构1051时，该至少一个感应子结构可以沿远离绑定区1041的方向上排列，作为示意性说明，该沿远离绑定区1041的方向为图7中所示的方向x。由于绑定区1041通常位于柔性电路板104的边缘区域，甚至位于显示面板的边缘区域，因此，将压力感应结构105设置于远离绑定区1041所在侧的一侧可以使压力感应结构较为靠近显示面板的中央，提高其压力感应的准 确性。Optionally, the pressure sensing structure 105 may be located at a target position on the flexible circuit board 104, and the target position is a side of the flexible circuit board 104 away from the side where the binding area 1041 is located. When the pressure sensing structure 105 includes at least one sensing substructure 1051, the at least one sensing substructure may be arranged in a direction away from the binding area 1041. As a schematic illustration, the direction away from the binding area 1041 is shown in FIG. The direction x shown. Since the binding area 1041 is usually located at the edge area of the flexible circuit board 104, or even at the edge area of the display panel, the pressure-sensitive structure 105 is arranged on the side away from the side where the binding area 1041 is located to make the pressure-sensitive structure closer to the display The center of the panel improves the accuracy of its pressure sensing.
在上述第二种分布方式中，可以通过设置每个感应子结构1051的大小实现全面屏感应。每个感应子结构1051的大小可以根据显示面板的大小进行设置，当用户的手指在显示面板上的任意位置施加压力时，至少有一个感应子结构1051与框体的距离能够发生变化，且该变化能够被控制压力感应结构的控制器能够有效感测出，并计算出电容值的变化量，反馈出对应的感应信号。In the above-mentioned second distribution method, full-screen sensing can be realized by setting the size of each sensing substructure 1051. The size of each sensing substructure 1051 can be set according to the size of the display panel. When the user's finger applies pressure on any position on the display panel, the distance between at least one sensing substructure 1051 and the frame can change, and the The change can be effectively sensed by the controller that controls the pressure sensing structure, and the amount of change in the capacitance value is calculated, and the corresponding sensing signal is fed back.
当然，在其他可选的分布方式中，该至少两个感应子结构1051可以位于柔性电路板104上的任意位置。Of course, in other optional distribution manners, the at least two sensing substructures 1051 can be located at any position on the flexible circuit board 104.
可选的，将压力感应结构设置于柔性电路板上的方式可以有多种，本申请实施例以以下两种设置方式为例进行说明。Optionally, there may be multiple ways of arranging the pressure sensing structure on the flexible circuit board. The embodiment of the present application takes the following two arrangement ways as examples for description.
第一种设置方式中，压力感应结构焊接于柔性电路板上。显示装置可以包括焊盘，该焊盘可以为承载基片，用于承载该压力感应结构，压力感应结构位于该焊盘上，压力感应结构通过该焊盘与柔性电路板焊接。可选的，当压力感应结构包括至少两个感应子结构时，显示装置可以包括至少两个焊盘，感应子结构分别位于对应的焊盘上，当然。感应子结构与焊盘可以一一对应，也可以多对一，也即是，多个感应子结构设置于一个焊盘上，本申请实施例对此不做限制。In the first setting method, the pressure sensing structure is soldered on the flexible circuit board. The display device may include a pad, the pad may be a carrier substrate for supporting the pressure-sensitive structure, the pressure-sensitive structure is located on the pad, and the pressure-sensitive structure is welded to the flexible circuit board through the pad. Optionally, when the pressure sensing structure includes at least two sensing substructures, the display device may include at least two pads, and the sensing substructures are respectively located on the corresponding pads, of course. The sensing substructures and the pads can be in one-to-one correspondence, or many-to-one, that is, multiple sensing substructures are arranged on one pad, which is not limited in the embodiment of the present application.
在第二种设置方式中，压力感应结构粘结于柔性电路板上。压力感应结构可以通过双面胶与柔性电路板粘结。可选的，为了避免贴合压力感应结构与柔性电路板的双面胶产生气泡影响压力感应结构的压力感应功能，该双面胶可以为网格状的双面胶。In the second arrangement, the pressure-sensitive structure is bonded to the flexible circuit board. The pressure-sensitive structure can be bonded to the flexible circuit board through double-sided tape. Optionally, in order to avoid air bubbles generated by the double-sided adhesive bonding the pressure-sensitive structure and the flexible circuit board to affect the pressure-sensing function of the pressure-sensitive structure, the double-sided adhesive may be a grid-shaped double-sided adhesive.
可选的，压力感应结构为能够导电的压力感应膜层，该压力感应膜层可以由金属材料制成，例如，该金属材料为铜。Optionally, the pressure-sensitive structure is a pressure-sensitive film layer capable of conducting electricity. The pressure-sensitive film layer may be made of a metal material, for example, the metal material is copper.
可选的，图8示出了本申请实施例提供的又一种显示装置10的结构示意图，该显示装置10为有机发光二极管显示装置，显示面板103为有机发光二极管显示面板，显示面板103与压力感应结构105之间具有缓冲层107。可选的，缓冲层107可以为泡棉。该显示装置10还包括设置于显示面板103远离框体102一侧的偏光片108以及设置于偏光片108远离显示面板103一侧的盖板109。可选的，盖板109可以为玻璃盖板。可选的，如图8所示，该显示装置10也可以为具有触控功能的有机发光二极管显示装置，也即是显示面板103为具有触控功 能的有机发光二极管显示面板。则该显示装置10还包括触控传感器110，该触控传感器设置于显示面板103的出光面的一面。该触控传感器可以通过触控层实现。Optionally, FIG. 8 shows a schematic structural diagram of another display device 10 provided by an embodiment of the present application. The display device 10 is an organic light emitting diode display device, the display panel 103 is an organic light emitting diode display panel, and the display panel 103 is connected to There is a buffer layer 107 between the pressure sensing structures 105. Optionally, the buffer layer 107 may be foam. The display device 10 further includes a polarizer 108 disposed on the side of the display panel 103 away from the frame 102 and a cover plate 109 disposed on the side of the polarizer 108 away from the display panel 103. Optionally, the cover plate 109 may be a glass cover plate. Optionally, as shown in FIG. 8, the display device 10 may also be an organic light emitting diode display device with touch function, that is, the display panel 103 is an organic light emitting diode display panel with touch function. Then the display device 10 further includes a touch sensor 110, and the touch sensor is disposed on one side of the light-emitting surface of the display panel 103. The touch sensor can be realized by a touch layer.
可选的，图9示出了本申请实施例提供的又一种显示装置10的结构示意图，该显示装置10为液晶显示装置，显示面板103为液晶显示面板，显示面板103与压力感应结构105之间设置有背光模组111。图9中示出的其他结构可以参考上述图8中的相关描述，本申请实施例在此不再赘述。Optionally, FIG. 9 shows a schematic structural diagram of another display device 10 provided by an embodiment of the present application. The display device 10 is a liquid crystal display device, the display panel 103 is a liquid crystal display panel, the display panel 103 and the pressure sensing structure 105 A backlight module 111 is provided in between. For other structures shown in FIG. 9, reference may be made to the related description in FIG. 8, and details are not repeated in the embodiment of the present application.
在上述有机发光二极管显示装置和液晶显示装置中，盖板109用于保护显示面板103防止其遭受外部磨损以及受到外部撞击。缓冲层107和背光模组111分别用于保护显示面板103在被进行按压操作的过程中，与框体102的过度接触。当然，该显示装置10还可以包括触控控制器等结构，图8和图9中并未一一示出。In the above-mentioned organic light emitting diode display device and liquid crystal display device, the cover plate 109 is used to protect the display panel 103 from external wear and external impact. The buffer layer 107 and the backlight module 111 are respectively used to protect the display panel 103 from excessive contact with the frame 102 during the pressing operation. Of course, the display device 10 may also include a touch controller and other structures, which are not shown one by one in FIGS. 8 and 9.
综上所述，本申请实施例提供的显示装置中，通过将压力感应结构通过柔性电路板与控制器连接，该连接有控制器的柔性电路板为显示装置中的固有柔性电路板，因此无需单独为该压力感应结构设置承载基板以及柔性线路板等结构，简化了显示装置的结构，在一定程度上降低了具有压力感应功能的显示装置的制作成本。In summary, in the display device provided by the embodiment of the present application, the pressure sensing structure is connected to the controller through the flexible circuit board. The flexible circuit board connected to the controller is an inherent flexible circuit board in the display device, so there is no need Separately providing the pressure sensing structure with a supporting substrate and a flexible circuit board and other structures simplifies the structure of the display device and reduces the manufacturing cost of the display device with the pressure sensing function to a certain extent.
本申请实施例提供了一种终端，该终端可以包括上述实施例所描述的显示装置，该终端可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品。The embodiments of the present application provide a terminal, which may include the display device described in the above embodiments, and the terminal may be a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc., which has a display function The product.
以上所述仅为本申请的可选的实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。The above are only optional embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the Within the scope of protection.

Claims (15)

  1. 一种显示装置，其特征在于，所述显示装置包括控制器、框体、显示面板、柔性电路板以及压力感应结构；A display device, characterized in that the display device includes a controller, a frame, a display panel, a flexible circuit board, and a pressure sensing structure;
    所述柔性电路板位于所述显示面板的背面，且与所述显示面板电连接，所述显示面板的背面为与所述显示面板的出光面相对的一面；The flexible circuit board is located on the back of the display panel and is electrically connected to the display panel, and the back of the display panel is the side opposite to the light-emitting surface of the display panel;
    所述压力感应结构位于所述柔性电路板上，所述压力感应结构通过所述柔性电路板与所述控制器电连接，The pressure sensing structure is located on the flexible circuit board, and the pressure sensing structure is electrically connected to the controller through the flexible circuit board,
    所述框体位于所述柔性电路板远离所述显示面板的一侧，所述框体与所述压力感应结构之间存在指定距离。The frame is located on a side of the flexible circuit board away from the display panel, and there is a designated distance between the frame and the pressure sensing structure.
  2. 根据权利要求1所述的显示装置，其特征在于，所述压力感应结构位于所述柔性电路板靠近所述框体的一面上。4. The display device of claim 1, wherein the pressure sensing structure is located on a side of the flexible circuit board close to the frame.
  3. 根据权利要求1所述的显示装置，其特征在于，所述显示装置还包括显示控制器，所述柔性电路板与所述显示控制器电连接。5. The display device of claim 1, wherein the display device further comprises a display controller, and the flexible circuit board is electrically connected to the display controller.
  4. 根据权利要求1至3任一所述的显示装置，其特征在于，所述压力感应结构包括至少一个感应子结构。The display device according to any one of claims 1 to 3, wherein the pressure sensing structure comprises at least one sensing substructure.
  5. 根据权利要求4所述的显示装置，其特征在于，所述至少一个感应子结构包括至少两个感应子结构，所述至少两个感应子结构在所述显示面板的背面的正投影均匀分布于所述显示面板的背面。The display device of claim 4, wherein the at least one sensing substructure comprises at least two sensing substructures, and the orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on The back of the display panel.
  6. 根据权利要求3所述的显示装置，其特征在于，所述显示面板还包括触控层，所述显示装置包括触控控制器，所述触控控制器与所述柔性电路板电连接，且通过所述柔性电路板与所述触控层电连接。3. The display device of claim 3, wherein the display panel further comprises a touch layer, the display device comprises a touch controller, and the touch controller is electrically connected to the flexible circuit board, and The flexible circuit board is electrically connected to the touch control layer.
  7. 根据权利要求1所述的显示装置，其特征在于，所述显示面板还包括触控层，所述控制器为触控控制器，The display device of claim 1, wherein the display panel further comprises a touch layer, and the controller is a touch controller,
    所述显示装置还包括显示控制器，所述柔性电路板与所述显示控制器电连 接，The display device further includes a display controller, and the flexible circuit board is electrically connected to the display controller,
    所述触控控制器位于所述柔性电路板上，且通过所述柔性电路板与所述触控层电连接，所述压力感应结构通过所述柔性电路板与所述触控控制器电连接。The touch controller is located on the flexible circuit board and is electrically connected to the touch layer through the flexible circuit board, and the pressure sensing structure is electrically connected to the touch controller through the flexible circuit board .
  8. 根据权利要求1至3任一所述的显示装置，其特征在于，所述压力感应结构与所述柔性电路板焊接。4. The display device according to any one of claims 1 to 3, wherein the pressure sensing structure is welded to the flexible circuit board.
  9. 根据权利要求1至3任一所述的显示装置，其特征在于，所述压力感应结构与所述柔性电路板粘结。The display device according to any one of claims 1 to 3, wherein the pressure sensing structure is bonded to the flexible circuit board.
  10. 根据权利要求9所述的显示装置，其特征在于，所述压力感应结构通过网格状双面胶与所述柔性电路板粘结。9. The display device of claim 9, wherein the pressure-sensitive structure is bonded to the flexible circuit board through a grid-shaped double-sided tape.
  11. 根据权利要求1所述的显示装置，其特征在于，所述柔性电路板上具有绑定区，所述柔性电路板通过所述绑定区与所述显示面板电连接；4. The display device of claim 1, wherein the flexible circuit board has a binding area, and the flexible circuit board is electrically connected to the display panel through the binding area;
    所述压力感应结构位于所述柔性电路板上的目标位置，所述目标位置位于所述柔性电路板上远离所述绑定区所在侧的一侧；The pressure sensing structure is located at a target position on the flexible circuit board, and the target position is located on a side of the flexible circuit board away from the side where the binding area is located;
    所述压力感应结构包括至少一个感应子结构，所述至少一个感应子结构沿远离所述绑定区的方向上排列。The pressure sensing structure includes at least one sensing substructure, and the at least one sensing substructure is arranged in a direction away from the binding area.
  12. 根据权利要求1至3任一所述的显示装置，其特征在于，所述显示面板为有机发光二极管显示面板，所述有机发光二极管显示面板与所述压力感应结构之间具有缓冲层；The display device according to any one of claims 1 to 3, wherein the display panel is an organic light emitting diode display panel, and a buffer layer is provided between the organic light emitting diode display panel and the pressure sensing structure;
    所述显示装置还包括偏光片、盖板以及触控传感器；The display device further includes a polarizer, a cover plate, and a touch sensor;
    所述触控传感器位于所述显示面板远离所述框体的一侧；The touch sensor is located on a side of the display panel away from the frame;
    所述偏光片位于所述触控传感器远离所述框体的一侧；The polarizer is located on a side of the touch sensor away from the frame;
    所述盖板位于所述偏光片远离所述框体的一侧。The cover plate is located on the side of the polarizer away from the frame.
  13. 根据权利要求1至3任一所述的显示装置，其特征在于，所述显示面板为液晶显示面板，所述液晶显示面板与所述压力感应结构之间具有背光模组；The display device according to any one of claims 1 to 3, wherein the display panel is a liquid crystal display panel, and a backlight module is provided between the liquid crystal display panel and the pressure sensing structure;
    所述显示装置还包括偏光片、盖板以及触控传感器；The display device further includes a polarizer, a cover plate, and a touch sensor;
    所述触控传感器位于所述显示面板远离所述框体的一侧；The touch sensor is located on a side of the display panel away from the frame;
    所述偏光片位于所述触控传感器远离所述框体的一侧；The polarizer is located on a side of the touch sensor away from the frame;
    所述盖板位于所述偏光片远离所述框体的一侧。The cover plate is located on the side of the polarizer away from the frame.
  14. 根据权利要求1所述的显示装置，其特征在于，所述显示装置还包括显示控制器，所述压力感应结构位于所述柔性电路板靠近所述框体的一面上；2. The display device of claim 1, wherein the display device further comprises a display controller, and the pressure sensing structure is located on a side of the flexible circuit board close to the frame;
    所述柔性电路板与所述显示控制器电连接；The flexible circuit board is electrically connected to the display controller;
    所述显示面板还包括触控层，所述控制器为触控控制器，所述触控控制器位于所述柔性电路板上，且通过所述柔性电路板与所述触控层电连接，所述压力感应结构通过所述柔性电路板与所述触控控制器电连接；The display panel further includes a touch layer, the controller is a touch controller, the touch controller is located on the flexible circuit board, and is electrically connected to the touch layer through the flexible circuit board, The pressure sensing structure is electrically connected to the touch controller through the flexible circuit board;
    所述压力感应结构包括至少两个感应子结构，所述至少两个感应子结构在所述显示面板的背面的正投影均匀分布于所述显示面板的背面。The pressure sensing structure includes at least two sensing substructures, and orthographic projections of the at least two sensing substructures on the back of the display panel are evenly distributed on the back of the display panel.
  15. 一种终端，其特征在于，所述终端包括权利要求1至14任一所述的显示装置。A terminal, characterized in that the terminal includes the display device according to any one of claims 1 to 14.
PCT/CN2019/100274 2019-08-12 2019-08-12 Display apparatus and terminal WO2021026743A1 (en)

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EP19933244.6A EP4016258A4 (en) 2019-08-12 2019-08-12 Display apparatus and terminal
US16/959,018 US11662853B2 (en) 2019-08-12 2019-08-12 Display device with flexible printed circuit connected to force sensing structure
PCT/CN2019/100274 WO2021026743A1 (en) 2019-08-12 2019-08-12 Display apparatus and terminal
CN201980001322.9A CN112654953B (en) 2019-08-12 2019-08-12 Display device and terminal
US18/301,611 US20230251736A1 (en) 2019-08-12 2023-04-17 Display device with flexible printed circuit connected to force sensing structure

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US20210405844A1 (en) 2021-12-30
CN112654953A (en) 2021-04-13

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